e2f32e6ab3
The spec for loading a media element is quite huge. This implements just enough to parse the attribute, fetch the corresponding media object, and decode the media object (if it is a video). While doing so, this also implements most network state tracking and firing DOM events that may be observed via JavaScript.
77 lines
2.5 KiB
C++
77 lines
2.5 KiB
C++
/*
|
|
* Copyright (c) 2020, the SerenityOS developers.
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/ByteBuffer.h>
|
|
#include <AK/Variant.h>
|
|
#include <LibJS/SafeFunction.h>
|
|
#include <LibWeb/HTML/EventLoop/Task.h>
|
|
#include <LibWeb/HTML/HTMLElement.h>
|
|
|
|
namespace Web::HTML {
|
|
|
|
class HTMLMediaElement : public HTMLElement {
|
|
WEB_PLATFORM_OBJECT(HTMLMediaElement, HTMLElement);
|
|
|
|
public:
|
|
virtual ~HTMLMediaElement() override;
|
|
|
|
void queue_a_media_element_task(JS::SafeFunction<void()> steps);
|
|
|
|
enum class NetworkState : u16 {
|
|
Empty,
|
|
Idle,
|
|
Loading,
|
|
NoSource,
|
|
};
|
|
NetworkState network_state() const { return m_network_state; }
|
|
|
|
Bindings::CanPlayTypeResult can_play_type(DeprecatedString const& type) const;
|
|
|
|
void load() const;
|
|
void pause() const;
|
|
|
|
JS::NonnullGCPtr<VideoTrackList> video_tracks() const { return *m_video_tracks; }
|
|
|
|
protected:
|
|
HTMLMediaElement(DOM::Document&, DOM::QualifiedName);
|
|
|
|
virtual JS::ThrowCompletionOr<void> initialize(JS::Realm&) override;
|
|
virtual void visit_edges(Cell::Visitor&) override;
|
|
|
|
private:
|
|
struct EntireResource { };
|
|
using ByteRange = Variant<EntireResource>; // FIXME: This will need to include "until end" and an actual byte range.
|
|
|
|
virtual void parse_attribute(DeprecatedFlyString const& name, DeprecatedString const& value) override;
|
|
|
|
Task::Source media_element_event_task_source() const { return m_media_element_event_task_source.source; }
|
|
|
|
WebIDL::ExceptionOr<void> load_element();
|
|
WebIDL::ExceptionOr<void> select_resource();
|
|
WebIDL::ExceptionOr<void> fetch_resource(AK::URL const&, Function<void()> failure_callback);
|
|
static bool verify_response(JS::NonnullGCPtr<Fetch::Infrastructure::Response>, ByteRange const&);
|
|
WebIDL::ExceptionOr<void> process_media_data(Function<void()> failure_callback);
|
|
WebIDL::ExceptionOr<void> handle_media_source_failure();
|
|
void forget_media_resource_specific_tracks();
|
|
|
|
// https://html.spec.whatwg.org/multipage/media.html#media-element-event-task-source
|
|
UniqueTaskSource m_media_element_event_task_source {};
|
|
|
|
// https://html.spec.whatwg.org/multipage/media.html#dom-media-networkstate
|
|
NetworkState m_network_state { NetworkState::Empty };
|
|
|
|
// https://html.spec.whatwg.org/multipage/media.html#dom-media-videotracks
|
|
JS::GCPtr<VideoTrackList> m_video_tracks;
|
|
|
|
// https://html.spec.whatwg.org/multipage/media.html#media-data
|
|
ByteBuffer m_media_data;
|
|
|
|
JS::GCPtr<Fetch::Infrastructure::FetchController> m_fetch_controller;
|
|
};
|
|
|
|
}
|